渤海中部和渤海海峡及其邻近海域浮游植物粒级生物量的初步研究 Ⅰ.浮游植物粒级生物量的分布特征

孙军; 刘东艳; 张晨; 钟华

渤海中部和渤海海峡及其邻近海域浮游植物粒级生物量的初步研究 Ⅰ.浮游植物粒级生物量的分布特征

中国海洋大学, 海洋生命学院, 山东, 青岛, 266003

基金项目: 国家基础研究与重点资助项目(G1999043703;2001CB409702);国家自然科学基金资助项目(40206020).

计量
- 文章访问数: 989
- HTML全文浏览量: 18
- PDF下载量: 1114
- 被引次数: 0
出版历程
- 收稿日期: 2001-12-30
- 修回日期: 2002-04-12

The preliminary study on size-fractionated biomass of phytoplankton in the central Bohai Sea, the Bohai Straits and its adjacent area Ⅰ. The distribution of phytoplankton size-fractionated biomass

Marine Life Science College, Ocean University of China, Qingdao 266003, China

摘要

摘要: 对1998年9月和1999年4月在渤海(37°～41°N,117.5°～122.5°E)进行的两次生态系统综合外业调查,对蓬莱、长岛两地进行15个月的连续资料监测,对渤海调查区浮游植物粒级生物量的平面分布、垂直分布、昼夜变化和周年变化特征进行了研究.结果表明,秋季主要以小型浮游植物为主,然后依次为微型和微微型浮游植物;春季主要以微型浮游植物所占比重最高,其次为小型浮游植物,微微型浮游植物占比例最低.1998年秋季对断面1,2浮游植物粒级组分的垂直分布研究表明,在不同海区(调查区西部、南部、渤海中部和渤海海峡)的不同水层,浮游植物粒级生物量的分布有明显差异.潮汐对浮游植物粒级生物量的周日变化影响较大.蓬莱、长岛两地的连续调查资料表明,浮游植物各粒级组分除微微型浮游植物外1a有两个峰.网采浮游植物在4和7月有高峰,4月是主峰;小型网采浮游植物在6和11月有高峰,6月是主峰;微型浮游植物在4和11月有高峰,两峰值接近;微微型浮游植物在9月有高峰.调查区与其他海区浮游植物叶绿素a浓度粒级组分比较,表明小型浮游植物所占比重较大.
- 渤海 /
- 浮游植物 /
- 粒级分离 /
- 叶绿素a /
- 周年变化
Abstract: Based on the two cruises of Sino-Germany cooperative ecosystem surveys which were carried out in the Bohai Sea(37°～41°N,117.5°～122.5°E)in September 1998 and April 1999,and a mont hly monitoring investigation at the Penglai and Changdao Island,the distribution and variations of phytoplankton size-fractionated biomass were studied.The size-fractionated chlorophyll a was measured.Phytoplankton was classified with four size fractions as follows:netphytoplankton,>76μm(the standard mesh size of phytoplankton net used in China);small netphy-toplankton,20～76μm;nanophytoplankton,2～20μm;picophytoplankton,0.2～2.0μm.The percentage of chlorophyll a concentrations of the four size fraction in the survey area are(31.11±11.46)%,(18.95±9.76)%,(33.06±10.71)% and (16.88±8.52)% (n=239) respectively in the autumn of 1998,and (13.34±7.48)%,(16.87±5.57)%,(52.95±13.51)% and (16.84±13.26)% (n=259) respectively in the spring of 1999.The netphytoplankton and small netphytoplankton can be combined into microphytoplankton. This result shows that the nanophytoplankton is the most important primary producer in spring and microphyto-plankton is the most important one in autumn in the Bohai Sea.The smallest picophytoplankton cannot be neglected and took a percentage of 17% compared with the other phytoplankton size components.The vertical profile patterns of size-fractionated chlorophyll a concentration of Transects 1 and 2 in the survey area show that microphytoplankton usually occupies in the upper water layer.The annual variation of size-fractionated chlorophyll a concentrations in the Bohai Straits show that:high values of chlorophyll a concentrations of netphytoplankton appear in April and July, the maximum is in April;high values of chlorophyll a concentrations of small netphytoplankton appear in June and November,the maximum is in June;similar high values of chlorophyll a concentrations of nanophytoplankton appear in April and November;and high values of chlorophyll a concentrations of picophytoplankton appear in September. The chlorophyll a contribution to total of the various size of phytoplankton in the survey area shows that microphyto-plankton is relatively important primary producer compared with the other regions.
- the Bohai Sea /
- phytoplankton /
- size fraction /
- chlorophylla /
- annual variation

HTML全文

参考文献(23)

SIEBURTH J McN, SMETACEK V, LENZ J. Pelagic ecosystem structure: heterotrophic components of the plankton and their relationship to plankton size-fractions[J]. Limnol Oceanogr, 1978, 23:1 256-1 263.

WATERBURY J B, WATSON S W, GUILLARD R R L, et al. Widespread occurrence of unicellular, marine, planktonic,cyanobacterium[J]. Nautre, 1979, 277: 293-294.

LI W K W, SUBBA Rao D V, HARRISON W G, et al. Autotrophic picoplankton in the tropical ocean[J]. Science, 1983,219: 292-295.

PLATT T. Physiological base of phytoplankton ecology[J]. Can Bull Fish Aquat Sci, 1981, 210: 1-346.

宁修仁,沃洛D.长江口及其毗邻东海水域蓝细菌的分布和细胞特性及其环境调节[J].海洋学报,1991,13(4):552-559.

陈怀清,钱树本.青岛近海微型、超微型浮游藻的研究[J].海洋学报,1992,14(3):105-113.

焦念志,王荣.海洋初级生产光动力学及其产品结构[J].海洋学报,1994,16(5):85-91.

吴玉霖,张永山.胶州湾叶绿素a和初级生产力的分布特征[A].董金海,焦念志.胶州湾生态学研究(一)[M].北京:科学出版社,1995.137-150.

洪华生,黄邦钦厦门西海域秋季浮游植物现存量、光合作用率的分级研究[J].厦门大学学报,1994,33(增刊):12-16.

CHANG C H, HUANG R. Biomass and productivity of size-fractionated phytoplankton in the coastal water of southwestern Taiwan[J]. Acta Oceanographica Taiwanica, 1989, 23: 86-94.

黄邦钦,洪华生,王海黎,等.台湾海峡初级生产过程研究.Ⅲ.浮游植物生物量、生产力的粒级结构和光合产品结构[A].中国海洋学文集7[C].北京:海洋出版社,1997.31-37.

陈兴群,余汉生,李国庭,等.副热带环流区叶绿素a分布和理化过程的变异[A].中国海洋学文集12[C].北京;海洋出版社,2000.144-150.

刘子琳,宁修仁,蔡昱明.北部湾浮游植物粒径分级叶绿素a和初级生产力的分布特征[J].海洋学报,1998,20(1):50-57.

朱明远,毛兴华,吕瑞华,等.黄海海区的叶绿素a和初级生产力[J].黄渤海海洋,1993,11(3):38-51.

PARSONS T R, MAITA Y, LALLI C M. A manual of chemical and biological methods for seawater analysis[M]. Oxford: Pergamon Press, 1984. 1-173.

JEFFREY S W, HUMPHREY G F. New spectrophotometric equations for determining chlorophylls a, b, c1 and c2 in higher plants, algae and natural phytoplankton[J]. Biochem Physiol Pflanzen, 1975, 167: 191-194.

UTERMOHL H. Zur vervolkommung der quantitativen phytoplankton-methodik[J]. Mitt Int Verein theor Angew Limnol, 1958, 9: 1-38.

SOURNIA A. Is there a shade flora in the marine plankton[J]. J Plankton Res, 1982, 4: 391-399.

SEMINA H J, TARKHOVA I A, TRUONG N A. Patterns of phytoplankton distribution, cell size, species composition and abundance[J]. Mar Biol, 1976, 37: 389-395.

PARSONS T R, TAKAHASHI M. Environmental control of phytoplankton cell size[J]. Limnol Oceanogr, 1973, 18:511-515.

MALONE T C. Algal size[A]. MORRIS I. The Physiological Ecology of Phytoplankton[C]. Berkeley and Los Angeles:University of California Press, 1980. 433-463.

CHISHOLM S W. Phytoplankton size[A]. FALKOWSKI P G, WOODHEAD A D. Primary Productivity and Biogeochemical Cycles in the Sea[C]. Environmental Science Research, vol. 43, New York: Plenum Press, 1992. 213-237.

RAVEN J A. Physiological consequences of extremely small size for autotrophic organism in the sea[A]. PLATT T, LI W K W. Photosynthetic Picoplankton[C]. Can Bull Fish Aquat Sci, 1986, 214: 1-70.

施引文献

资源附件(0)

访问统计